The court signed off on the new procedures.
White House spokesman Josh Earnest said the White House still contends there is no domestic surveillance program. He said the program is specifically to gather foreign intelligence.
"The reason that we're talking about it right now is because there are very strict compliance standards in place at the NSA that monitor for compliance issues, that tabulate them, that document them and that put in place measures to correct them when they occur," Earnest said.
The disclosures were greeted with cautious optimism by Democratic Sen. Mark Udall of Colorado, who has sponsored legislation to curb some of the NSA's surveillance and serves on the Senate Intelligence Committee.
"I am glad the NSA is taking this step at owning its mistakes, but it is also a sign that we can and must do more to protect innocent Americans with no connection to terrorism from being monitored by our government — whether intentionally or not," Udall said Wednesday. "I will keep fighting to ensure that the NSA is not violating Americans' privacy rights."
Documents available at: http://icontherecord.tumblr.com
Associated Press writers Julie Pace, Josh Lederman, Richard Lardner and Eileen Sullivan contributed to this report.